13668580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 29917440

約数和(自身を除く): 16248860

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 158, 164, 205, 211, 316, 395, 410, 422, 790, 820, 844, 1055, 1580, 2110, 3239, 4220, 6478, 8651, 12956, 16195, 16669, 17302, 32390, 33338, 34604, 43255, 64780, 66676, 83345, 86510, 166690, 173020, 333380, 683429, 1366858, 2733716, 3417145, 6834290, 13668580]

約数ペア:

[(1, 13668580), (2, 6834290), (4, 3417145), (5, 2733716), (10, 1366858), (20, 683429), (41, 333380), (79, 173020), (82, 166690), (158, 86510), (164, 83345), (205, 66676), (211, 64780), (316, 43255), (395, 34604), (410, 33338), (422, 32390), (790, 17302), (820, 16669), (844, 16195), (1055, 12956), (1580, 8651), (2110, 6478), (3239, 4220)]